Department Spin and Topology in Quantum Materials
DESY
X-ray radiation source PETRA III
User Access
Typical deadlines:
- for regular proposals: twice a year in March (01/03) and September (01/09) for standard proposals for beamtime in the period 6 months later (March-July for September deadline or August-February for March deadline)
- for LTP and BAG proposals are mid January and mid July
- rolling proposals at P22: proposal submission is possible at any time without deadline
Information about open calls are distributed by email to all persons registered in a database DOOR
Help on writing a good proposal and the proposal template
Contact person for users from quantum technology
Instruments especially suited for quantum technology research
|
High Resolution Dynamics Beamline |
Variable Polarization XUV Beamline
|
Resonant Diffraction |
Hard X-ray Photoelectron Spectroscopy |
|
NFS, NIS, SMS, XRS, RIXS |
XPS, FTH, XMCD, ARPES, CDI |
REXS |
HAXPES, HAXPEEM, XPD, XPS, k-TOF |
|
P01 is dedicated to nuclear resonance (NRS) and inelastic X-ray scattering (XRS and RIXS) experiments over a wide range of photon energies from 2.5 keV to 90 keV. With its 10 m long undulator source it provides an unprecedented high photon flux. The beamline is equipped with high resolution monochromators providing an energy resolution from 1 meV to about 1eV and high spatial resolution in the (sub-) micron range. Research focuses on correlated electron systems, magnetism of nanostructures ex- and in-situ during growth, magnetic phase transitions (e.g. under high pressure), studies of magnetism and dynamics of materials under high pressure (e.g. geological samples) and nuclear quantum optics. |
P04 is a unique beamline in the PETRA III beamline portfolio, providing soft X-ray radiation in the photon energy range between 250 eV and 3000 eV. The beamline offers an exceptionally high photon flux in a very small bandpass (resolving power exceeds 10,000) as well as variable polarisation over the whole energy range. It enables new classes of soft X-ray experiments in magnetic spectroscopy, high resolution photoelectron and inelastic X-ray scattering spectroscopy, surface chemistry, soft X-ray diffraction and holography. Quantum technology research includes ferromagnetic & topological materials, spintronics and topological quasiparticles. |
P09 is dedicated to resonant elastic X-ray scattering in the tender and hard X-ray range with full polarisation control, fast polarisation switching and polarisation analysis capabilities between 2.7 and 13.7 keV. It is equipped with two diffractometers as central instruments, allowing diffraction in combination with unique cryogenic sample environments (high dc magnetic fields, low temperatures, high pressure). Quantum technology research focuses on correlated electron systems, magnetic & topological materials. |
P22 is dedicated to the study of the electronic and atomic structure of surfaces, gases, interfaces and bulk materials. The beamline is designed for specific techniques using X-ray excited photoelectron emission in the energy range from 2.4 keV up to about 15 keV and provides several end stations specialised for HAXPES, k-microscopy, HAXPEEM and high pressure XPS. Quantum technology research includes heterostructures of magnetic and correlated oxides, composite multiferroics, thin films and multilayers, and topological materials. |
|
•Energy range: 2.5 – 90 keV
•Temperature range: 2 - 800 K (various cryostats), 80 – 300 K (cold nitrogen cryo gas stream system)
• Electromagnet allows for fields up to 1 Tesla and can be combined with cryostats.
•A vector-cryomagnet allows to apply fields up to 6 Tesla or 2 Tesla depending on the field orientation.
•Pressure range: 100kPa to 100GPa (1 Bar to 1MBar)
|
•Energy range: 0.25 – 3 keV
•Open-port concept (user-supplied experiments)
•ASPHERE III permanent instrument (collaboration with DESY group Soft X-ray Spectroscopy of Quantum Materials). Angle-, spin-, and position-resolving photoelectron spectrometer
•MAXP04 permanent instrument (collaboration with MBI Berlin). Imaging station for magnetic spectro–microscopy using techniques such as CDI and FTH.
•Polarization: circular(left/right)
|
•Energy range: 2.7 – 13.7 keV
•Temperature range: 1.7 K – 700 K (cryostats), 4 – 293 K (pulse tube cryostat, uniaxial strain & diamond anvil cells),
•High magnetic field: 14 Tesla vertical field split-coil cryomagnet with variable temperature insert 1.8 K – 293 K
•Pressure range: hydrostatic pressure 0.5 – 20 Gpa, uniaxial pressure
•Polarization: Full polarization control (circ., hor./ver.)
|
•Energy range: 2.4 – 30 keV
•Temperature range: 45 K - 400K
•Pressures: 0.2-1 bar and beyond (POLARIS instrument, combination with temperatures up to 700°C)
•Polarization: Full polarization control (circ., hor./ver.)
|
|
Powder Diffraction and Total Scattering Beamline |
High-Energy X-ray Diffraction
|
Advanced & Applied XAFS |
Time-resolved luminescence spectroscopy |
|
PXRD, TS, PDF |
XRD, TS, PDF |
XES, XAS, EXAFS, XANES, QEXAFS |
IR-Vis, VUV spectroscopy |
|
P02.1 is dedicated to powder diffraction and total scattering experiments at a fixed photon energy of 60 keV to study the atomic-scale structure of polycrystalline materials, both in terms of long-range periodic order - by Bragg diffraction - and local structural features. The beamline is highly automated and allows high throughput measurements. Sample mail-in and remote operation are possible. Quantum technology research includes structural investigation of nanoparticles, superconductors, multiferroics and quantum spin liquid materials. |
P07-DESY & P21.1 are dedicated to high energy diffraction and scattering experiments at fixed photon energies of 52 keV, 85 keV and 100 keV to study a wide range of materials from single crystals to nanocrystalline powders and liquids. In particular, the beamline allows complex in-situ and operando experiments and the analysis of local (dis)order at the atomic scale. Research in quantum technology includes nanoparticles, nanomaterials and the structure-property relationship of strongly correlated electron materials. |
P64 and P65 are dedicated to X-ray absorption and emission spectroscopy experiments in the photon energy range between 4 keV and 45 keV. The high photon flux, especially at P64, allows the study of highly dilute systems and high-resolution resonant X-ray emission spectroscopy experiments. P65 provides easy-to-use, stable and robust setups for high-throughput standard XAFS experiments. Both beamlines allow in-situ/operando experiments. Quantum technology research includes magnetic structures such as anti/ferromagnets, multiferroic materials, nanoparticles and nanopowders. |
P66 is dedicated to time-resolved luminescence and photon-stimulated desorption spectroscopy experiments in the photon energy range 3.7 - 40 eV. Quantum technology research includes nanoparticles, thin films, quantum heterostructures, optical crystals and nanocomposites. |
|
•Energy range: 60 keV (fixed)
•Temperature range: 77 K – 823 K (Linkam furnace/cryostat), 80 K – 100 K (cryo-stream), 4 K – 300 K (He-cryostat)
•Pressure range: Several 100 bar (high-pressure gas cell)
•Several sample environments (furnaces, cryostats, heater, high-pressure cells)
|
•Energy range: 52 keV, 85 keV, 100 keV (fixed)
•Temperature range: 20 K – 350 K (cryostat), up to 600°C (furnace), up to 800°C (heat gun), up to 1000°K (resistive heating plates)
•Magnetic field: 10 T magnet in temperature range between 2K – 300 K in He gas environment of around 10 mbar (magnet cryostat)
•Fast sample change via multi-capillary rack
|
•Energy range: 4 – 45 keV
•Temperature range: 4 K and 290 K (cryostats + He exchange gas)
|
•Energy range: 3.7 – 40 eV
•Temperature range: 10 K - 380K (cryostats)
•Samples in UHV
|
Free-electron laser FLASH
User Access
Typical deadlines:
for regular proposals: usually twice a year in October (01/10) and April (01/04) for beamtime in the period typically starting 9 months later.
Information about open calls are distributed by email to all persons registered in our database DOOR.
Help on writing a good proposal and the proposal template.
Contact person for users from quantum technology
Local instrument responsibles
HEXTOF: Dmytro Kutnyakhov
WESPE: Lukas Wenthaus
For all other requests: Rolf Treusch
Instruments of FLASH especially suited for quantum technology research
Beamlines
|
FLASH1 |
FLASH2 |
FLASH2 |
FL11 beamline FLASH1 |
|
The ‘PG’ XUV−soft x-ray monochromator beamline installed at FLASH is a high-resolution plane grating monochromator. The PG beamline layout permits a free choice of best compromise between photon flux and resolution (resolving power up to 12000). PG has two ports, PG2 is equipped with an open port, PG1 delivers beam to a fixed RIXS setup for condensed matter experiments. FLASH1 will be externally seeded from 2026. |
The FL23 pulse-length preserving double-grating monochromator beamline is an open-port variable micro-focus beamline with a Kirkpatrick-Baez mirror system and a spectral resolving power of up to 3000. |
The FL24 beamline is an open port variable micro-focus beamline optimized for high transmission across the 'water-window’ and even beyond. It is operable for the full wavelengths range at FLASH2 with its variable-gap undulators. |
This new beamline at FLASH1 is still in setup phase. It features a bendable KB system and the future opportunity to overlap THz undulator radiation with variable time delay, as well as optical laser radiation with the FEL pulses. FLASH1 is externally seeded from 2026 on.
|
|
•Spectral range: 25-275 eV (900 eV in 3rd harm.)
•pulse duration: 100-300 fs
•Pulse energy: 0.5µJ-20µJ in fundamental
•(≈1% of that in 3rd harmonic)
•Optical pump−probe laser parameters (Yb multipass cell):
-Rep. Rate: 1 MHz
-Pulse energy: 50 µJ @1030 nm
-Duration: sub 100 fs
-Harmonics: 515, 340 nm
|
•Spectral range: 60-390 eV (1 keV in 3rd harm.)
•pulse duration: sub 100 fs
•Pulse energy: 0.5µJ-100µJ in fundamental
•(≈1% of that in 3rd harmonic)
•Optical pump−probe laser parameters (Yb multipass cell):
-Rep. Rate: 100 Khz
-Pulse energy: 2 mJ @1030 nm
-Duration: <70 fs,
-Harmonics: 515, 340, 260 nm
•X-ray split and delay unit
|
•Spectral range: 14-390 eV (1keV in 3rd harm.)
•pulse duration: 1 fs to 100 fs
•Pulse energy: 0.5µJ-500µJ in fundamental
•(≈1% of that in 3rd harmonic)
•Optical pump−probe laser parameters (OPCPA):
-Rep. Rate: 100 Khz
-Pulse energy: 200 µJ @800 nm
-Duration: 15 or 50 fs,
-Harmonics: 400, 266 nm
•X-ray split and delay unit
|
•Spectral range: 25-275 eV (900 eV in 3rd harm.)
•pulse duration: 100-300 fs
•Pulse energy: 0.5µJ-20µJ in fundamental
•(≈1% of that in 3rd harmonic)
•Envisaged Optical pump−probe laser parameters (Yb multipass cell):
-Rep. Rate: 200 Khz
-Pulse energy: 500 µJ @1030 nm
-Duration: 50 fs,
-Harmonics: 515, 340, 260 nm
•THz parameters from before seeding in 2024:
-tunable: 10 ‐ 300 μm; up to 100 μJ/pulse; ~10% bandwidth,
-broadband at 200 μm; up to 10μJ/pulse; ~100% bandwidth
|
|
WESPE (mobile) |
HEXTOF (mobile) |
TRIXS (fixed at PG) |
MUSIX (mobile) |
|
The WESPE instrument is optimized for photoemission from surfaces (also covered by molecular layers) and features time of flight spectrometers for photoelectron spectroscopy. It contains all equipment needed for surface preparation. The istrument is so far mostly used at beamline PG2 but also well suited for FL23. |
The HEXTOF instrument is optimized for photoemission from surfaces (also covered by molecular layers) and features special time-of-flight spectrometers and electron optics of k-space resolution. ARPES can be performed without scanning angles. In addition core level XPS can be performed. The instrument contains all equipment needed for surface preparation. The instrument is so far mostly used at beamline PG2 but also well suited for FL23. |
TRIXS is dedicated to time-resolved soft x-ray resonant inelastic x-ray scattering (tr-RIXS) experiments on solid samples. The TRIXS instrument is optimized for RIXS in the energy range of 36-200 eV with a resolving power ~1700 and a total time resolution of 170 fs to 300 fs FWHM. |
The MUSIX instrument is designed to conduct multi-dimensional scattering and spectroscopy. A spectrometer for the soft X-ray (50-1000 eV) with a resolving power ~2000 can be attached to a scattering chamber. According to target requests, optional detection approaches like the resonance X-ray scattering (RXS), resonance inelastic X-ray scattering (RIXS), X-ray absorption spectroscopy, and µm X-ray imagine can be performed. |
|
|
Instrument paper: D. Kutnyakhov et al., Rev. Sci. Instrum. 91, 013109 (2020) |
Instrument paper: S. Dziarzhytski et al., Struct. Dyn. 7, 054301 (2020) |
Instrument paper: M. Beye et al., J. Phys.: Condens. Matter 31, 014003 (2019) |